You have to trade and catch as much Pokemon as you can
every where
Pokemon's 1-384
Catch all the Pokemon!
u can get all of them...
Yes
all over
YES
In Pokemon firered you can't, but in Pokemon leafgreen you can get it then trade it to Pokemon firered.
By trading and catching them i think
There is no Pokemon convention in firered.
you have to trade them from other Pokemon games
Not at all because firered has a few extras in the game it has Pokemon that red couldn't get like delibird, sentret and natu.